<template>
  <div class="about">
    <div style="height: 1000px"></div>
    <h1>This is an about page</h1>
    <button @click="add">添加</button>
  </div>
</template>
<script>
export default {
  data() {
    return {
      arr: [
        1, 2, 3, 4, 45, 5, 6, 6, 1, 1, 1, 1, 1, 1, 1, 11, 1, 1, 1, 1, 1, 1, 1,
        11, 1, 1, 1, 11,
      ],
      // arr: [1, 2, 3, 4, 45, "aa", 5, 6, 6],
    };
  },
  methods: {
    add() {
      this.arr.splice(4, 0, "aa");
    },
  },
};
</script>
